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Nickel 686 vs. Nickel 684

Both nickel 686 and nickel 684 are nickel alloys. They have 77% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is nickel 684.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
11
Fatigue Strength, MPa 410
390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
76
Shear Strength, MPa 560
710
Tensile Strength: Ultimate (UTS), MPa 780
1190
Tensile Strength: Yield (Proof), MPa 350
800

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Maximum Temperature: Mechanical, °C 980
1000
Melting Completion (Liquidus), °C 1380
1370
Melting Onset (Solidus), °C 1340
1320
Specific Heat Capacity, J/kg-K 420
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
75
Density, g/cm3 9.0
8.3
Embodied Carbon, kg CO2/kg material 12
10
Embodied Energy, MJ/kg 170
140
Embodied Water, L/kg 300
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
120
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1610
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 24
40
Strength to Weight: Bending, points 21
30
Thermal Shock Resistance, points 21
34

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.010
0 to 0.15
Chromium (Cr), % 19 to 23
15 to 20
Cobalt (Co), % 0
13 to 20
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 0 to 5.0
0 to 4.0
Manganese (Mn), % 0 to 0.75
0 to 0.75
Molybdenum (Mo), % 15 to 17
3.0 to 5.0
Nickel (Ni), % 49.5 to 63
42.7 to 64
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 0.080
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0.020 to 0.25
2.5 to 3.3
Tungsten (W), % 3.0 to 4.4
0